Geothermal Valley - Lighting the Signal Fire (Part 1)

You've no doubt noticed the spire with the unlit signal fire as you roamed around the valley. To get there, activate Survival Instinct and head south toward the Objective Beacon. When you reach the cliff's edge, the spire should be directly ahead, as shown above.

Use a rope arrow to make a zip line. Then slide down across the water.

Scramble up the wooden wall and move around to the left.

Jump to grab the wooden ledge, which totters a bit but does not break. Pull up.

Use the horizontal pole to swing across the gap and then latch onto the climbable wall ahead.

Climb up and around to the right.

Press B to release your grip on the wall and then quickly press Interact to latch onto the next climbable section below. Climb, then jump, across the gap to the right.

Climb to the right as far as you can. Then jump to grab the lower of the 2 wooden slats on the wall to the right.

Climb up to the higher slat then to the right as far as Lara will go. Scramble up onto the ledge above.

Continue around to the right. There's another horizontal pole just ahead. Use it to swing across the gap. Then continue around the tower.

Jump across the next gap and quickly scramble up the painted wall to grab the wooden plank above. Climb around the corner to the right...

...all the way out to the end of the next plank. Then jump across to the next section of rough wall and climb onto the ledge above.

Move to the far end of this ledge and jump to grab another wooden plank. Here you may need to press Interact to prevent Lara from losing her grip.

Climb all the way around to the right.

Jump and latch onto the next climbable wall, which leads up to a room inside the tower.

Here you'll find the OIL FLASK which allows you to make FIRE ARROWS.